我正在尝试从RabbitMq的队列中获取消息,但只是第一次它给了我消息计数,然后它没有给我任何计数。我正在使用scala语言并使用它的actor.Any的帮助将是赞赏。
代码如下
def act {
loop {
FACTORY = new ConnectionFactory()
// println("loop")
FACTORY.setUsername("guest")
FACTORY.setPassword("guest")
FACTORY.setVirtualHost("/")
FACTORY.setPort(5672)
FACTORY.setHost("localhost")
**conn = FACTORY.newConnection**
QUEUE_CHANNEL = conn.createChannel
QUEUE_CHANNEL.exchangeDeclare(EXCHANGE_NAME, "direct", durable)
var no = QUEUE_CHANNEL.queueDeclare(QUEUE_NAME, durable, false,false,null).getMessageCount
println("calling to main Q" + no)
QUEUE_CHANNEL.queueBind(QUEUE_NAME, EXCHANGE_NAME, QUEUE_ROUTING_KEY)
if (no > 0) {
println("calling to main Q" + no)
getQ
}
}
}
def getQ {
try {
println("gettng main q")
val consumer = new QueueingConsumer(QUEUE_CHANNEL)
QUEUE_CHANNEL basicConsume (QUEUE_NAME, false, consumer)
val delivery = consumer.nextDelivery
val msg = new java.io.ObjectInputStream(
new java.io.ByteArrayInputStream(delivery.getBody)).readObject
var obj = msg.asInstanceOf[QueueObject]
QUEUE_CHANNEL.basicAck(delivery.getEnvelope().getDeliveryTag, false)
//println(obj.status)
if (obj != null)
add(obj) //add to particular queue
} catch {
case e: InterruptedException => println(e)
}
}
我的代码第二次进入 conn = FACTORY.newConnection 时会进入无限循环。
答案 0 :(得分:1)
免责声明:我是Akka的PO
我建议你看看Akka的演员,在AMQP上有一个光滑的DSL,我认为你可以从中受益:
http://doc.akkasource.org/amqp 另一种方法是通过Camel消费消息(如果它漂浮在您的船上):